Release 5 Draft Ballot
Orders and Observations Work Group Maturity Level: 0Trial Use Use Context: Any

The official URL for this profile is:

http://hl7.org/fhir/StructureDefinition/devicemetricobservation

This profile describes the direct or derived, qualitative or quantitative physiological measurement, setting, or calculation data produced by a medical device or a device component.

This profile was published on Sat, Aug 11, 2018 00:00+0000 as a draft by Health Level Seven International (Orders and Observations Workgroup).

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Observation.

Summary

Mandatory: 5 elements
Must-Support: 12 elements
Prohibited: 4 elements

This structure is derived from Observation.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationMeasurements and simple assertions
... identifier S0..*IdentifierBusiness Identifier for observation
... status S1..1coderegistered | preliminary | final | amended +
... code S1..1CodeableConceptType of observation (code / type)
... encounter 0..0
... effectiveDateTime S1..1dateTimeClinically relevant time/time-period for observation
... issued 0..0
... value[x] S0..1Actual result
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
... dataAbsentReason 0..0
... interpretation 0..1CodeableConceptHigh, low, normal, etc.
... note 0..*AnnotationComments about the observation
... bodySite S0..1CodeableConceptObserved body part
... method S0..1CodeableConceptHow it was done
... specimen 0..0
... device S1..1Reference(DeviceMetric)(Measurement) Device
... referenceRange S0..1BackboneElementProvides guide for interpretation
... hasMember S0..*Reference(Observation)Related resource that belongs to the Observation group
... derivedFrom S0..*Reference(Observation)Related measurements the observation is made from

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation I0..*ObservationMeasurements and simple assertions
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: Common Languages (preferred)
Max Binding: All Languages: IETF language tag

... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier SΣ0..*IdentifierBusiness Identifier for observation
... instantiates[x] Σ0..1canonical(ObservationDefinition), Reference(ObservationDefinition)Instantiates FHIR ObservationDefinition
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationUsage | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... category 0..*CodeableConceptClassification of type of observation
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


... code SΣ1..1CodeableConceptType of observation (code / type)
Binding: LOINC Codes (example): Codes identifying names of simple observations.

... subject SΣ1..1Reference(Patient | Device)Who and/or what the observation is about
... focus Σ0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... effective[x] Σ1..1(Slice Definition)Clinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTimeClinically relevant time/time-period for observation
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... value[x] SΣI0..1Actual result
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
... interpretation 0..1CodeableConceptHigh, low, normal, etc.
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite S0..1CodeableConceptObserved body part
Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts

... method S0..1CodeableConceptHow it was done
Binding: Observation Methods (example): Methods for simple observations.

... device S1..1Reference(DeviceMetric)(Measurement) Device
... referenceRange SI0..1BackboneElementProvides guide for interpretation
.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low I0..1SimpleQuantityLow Range, if relevant
.... high I0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember SΣ0..*Reference(Observation)Related resource that belongs to the Observation group
... derivedFrom SΣ0..*Reference(Observation)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINC Codes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
..... valueAttachmentAttachment
.... dataAbsentReason I0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format
<!-- Device Metric Observation Profile -->doco

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- ?? 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- ?? 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- ?? 0..1 Language of the resource content   -->
 <text><!-- ?? 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- ?? 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- ?? 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- ?? 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <partOf><!-- ?? 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- ?? 1..1 registered | preliminary | final | amended +   -->
 <category><!-- ?? 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- ?? 1..1 CodeableConcept Type of observation (code / type)   --></code>
 <subject><!-- ?? 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- ?? 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- ?? 0..0 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <-- effectiveDateTime sliced by type:$this  in the specified orderClosed-->
 <effectiveDateTime value="[dateTime]"/><!-- ?? 1..1 Clinically relevant time/time-period for observation -->
 <issued value="[instant]"/><!-- ?? 0..0 Date/Time this version was made available -->
 <performer><!-- ?? 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <value[x]><!-- ?? 0..1 Quantity|CodeableConcept|string|Range|Ratio|
   SampledData|time|dateTime|Period Actual result --></value[x]>
 <dataAbsentReason><!-- ?? 0..0 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- ?? 0..1 CodeableConcept High, low, normal, etc.   --></interpretation>
 <note><!-- ?? 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- ?? 0..1 CodeableConcept Observed body part   --></bodySite>
 <method><!-- ?? 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- ?? 0..0 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- ?? 1..1 Reference(DeviceMetric) (Measurement) Device --></device>
 <referenceRange> ?? 0..1 BackboneElement  <!-- ?? 0..1 Provides guide for interpretation -->
  <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- ?? 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- ?? 0..1 Quantity 
      High Range, if relevant --></high>
  <type><!-- ?? 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- ?? 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- ?? 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[string]"/><!-- ?? 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- ?? 0..* Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- ?? 0..* Reference(Observation) 
     Related measurements the observation is made from --></derivedFrom>
 <component> ?? 0..* BackboneElement  <!-- ?? 0..* Component results -->
  <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- ?? 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <value[x]><!-- ?? 0..1 Quantity|CodeableConcept|string|
    boolean|integer|Range|Ratio|SampledData|time|dateTime|Period|Attachment 
      Actual component result --></value[x]>
  <dataAbsentReason><!-- ?? 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- ?? 0..* CodeableConcept High, low, normal, etc.   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>
{ // Device Metric Observation Profile
  // from Element: extension
    "meta" : { Meta }, // C?Metadata about the resource
    "implicitRules" : "<uri>", // C?A set of rules under which this content was created
    "language" : "<code>", // C?Language of the resource content
    "text" : { Narrative }, // C?Text summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // C?Extensions that cannot be ignored
    "identifier" : [{ Identifier }], // C?Business Identifier for observation
// value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // C?Instantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // C?Instantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // C?Fulfills plan, proposal or order
    "partOf" : [{ Reference(MedicationAdministration) }], // C?Part of referenced event
    "status" : "<code>", // C? R! registered | preliminary | final | amended +
    "category" : [{ CodeableConcept }], // C?Classification of  type of observation
    "code" : { CodeableConcept }, // C? R! Type of observation (code / type)
    "subject" : { Reference(Patient) }, // C? R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // C?What the observation is about, when it is not about the subject of record
    "effectiveDateTime" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Clinically relevant time/time-period for observation // C? R! 
        // from Element: extension
      }
    ],
    "performer" : [{ Reference(Practitioner) }], // C?Who is responsible for the observation
// value[x]: Actual result. One of these 9:
    "valueQuantity" : { Quantity }, // C?Actual result
    "valueCodeableConcept" : { CodeableConcept }, // C?Actual result
    "valueString" : "<string>", // C?Actual result
    "valueRange" : { Range }, // C?Actual result
    "valueRatio" : { Ratio }, // C?Actual result
    "valueSampledData" : { SampledData }, // C?Actual result
    "valueTime" : "<time>", // C?Actual result
    "valueDateTime" : "<dateTime>", // C?Actual result
    "valuePeriod" : { Period }, // C?Actual result
    "interpretation" : { CodeableConcept }, // C?High, low, normal, etc.
    "note" : [{ Annotation }] // C?Comments about the observation
    "bodySite" : { CodeableConcept }, // C?Observed body part
    "method" : { CodeableConcept }, // C?How it was done
    "device" : { Reference(DeviceMetric) }, // C? R! (Measurement) Device
    "referenceRange" : { BackboneElement }, // C?Provides guide for interpretation
    "hasMember" : [{ Reference(Observation) }], // C?Related resource that belongs to the Observation group
    "derivedFrom" : [{ Reference(Observation) }], // C?Related measurements the observation is made from
    "component" : [{ BackboneElement }], // C?Component results
  }

This structure is derived from Observation.

Summary

Mandatory: 5 elements
Must-Support: 12 elements
Prohibited: 4 elements

Differential View

This structure is derived from Observation.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationMeasurements and simple assertions
... identifier S0..*IdentifierBusiness Identifier for observation
... status S1..1coderegistered | preliminary | final | amended +
... code S1..1CodeableConceptType of observation (code / type)
... encounter 0..0
... effectiveDateTime S1..1dateTimeClinically relevant time/time-period for observation
... issued 0..0
... value[x] S0..1Actual result
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
... dataAbsentReason 0..0
... interpretation 0..1CodeableConceptHigh, low, normal, etc.
... note 0..*AnnotationComments about the observation
... bodySite S0..1CodeableConceptObserved body part
... method S0..1CodeableConceptHow it was done
... specimen 0..0
... device S1..1Reference(DeviceMetric)(Measurement) Device
... referenceRange S0..1BackboneElementProvides guide for interpretation
... hasMember S0..*Reference(Observation)Related resource that belongs to the Observation group
... derivedFrom S0..*Reference(Observation)Related measurements the observation is made from

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation I0..*ObservationMeasurements and simple assertions
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: Common Languages (preferred)
Max Binding: All Languages: IETF language tag

... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier SΣ0..*IdentifierBusiness Identifier for observation
... instantiates[x] Σ0..1canonical(ObservationDefinition), Reference(ObservationDefinition)Instantiates FHIR ObservationDefinition
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationUsage | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... category 0..*CodeableConceptClassification of type of observation
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


... code SΣ1..1CodeableConceptType of observation (code / type)
Binding: LOINC Codes (example): Codes identifying names of simple observations.

... subject SΣ1..1Reference(Patient | Device)Who and/or what the observation is about
... focus Σ0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... effective[x] Σ1..1(Slice Definition)Clinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTimeClinically relevant time/time-period for observation
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... value[x] SΣI0..1Actual result
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
... interpretation 0..1CodeableConceptHigh, low, normal, etc.
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite S0..1CodeableConceptObserved body part
Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts

... method S0..1CodeableConceptHow it was done
Binding: Observation Methods (example): Methods for simple observations.

... device S1..1Reference(DeviceMetric)(Measurement) Device
... referenceRange SI0..1BackboneElementProvides guide for interpretation
.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low I0..1SimpleQuantityLow Range, if relevant
.... high I0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember SΣ0..*Reference(Observation)Related resource that belongs to the Observation group
... derivedFrom SΣ0..*Reference(Observation)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINC Codes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
..... valueAttachmentAttachment
.... dataAbsentReason I0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format

XML Template

<!-- Device Metric Observation Profile -->doco

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- ?? 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- ?? 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- ?? 0..1 Language of the resource content   -->
 <text><!-- ?? 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- ?? 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- ?? 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- ?? 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <partOf><!-- ?? 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- ?? 1..1 registered | preliminary | final | amended +   -->
 <category><!-- ?? 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- ?? 1..1 CodeableConcept Type of observation (code / type)   --></code>
 <subject><!-- ?? 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- ?? 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- ?? 0..0 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <-- effectiveDateTime sliced by type:$this  in the specified orderClosed-->
 <effectiveDateTime value="[dateTime]"/><!-- ?? 1..1 Clinically relevant time/time-period for observation -->
 <issued value="[instant]"/><!-- ?? 0..0 Date/Time this version was made available -->
 <performer><!-- ?? 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <value[x]><!-- ?? 0..1 Quantity|CodeableConcept|string|Range|Ratio|
   SampledData|time|dateTime|Period Actual result --></value[x]>
 <dataAbsentReason><!-- ?? 0..0 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- ?? 0..1 CodeableConcept High, low, normal, etc.   --></interpretation>
 <note><!-- ?? 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- ?? 0..1 CodeableConcept Observed body part   --></bodySite>
 <method><!-- ?? 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- ?? 0..0 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- ?? 1..1 Reference(DeviceMetric) (Measurement) Device --></device>
 <referenceRange> ?? 0..1 BackboneElement  <!-- ?? 0..1 Provides guide for interpretation -->
  <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- ?? 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- ?? 0..1 Quantity 
      High Range, if relevant --></high>
  <type><!-- ?? 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- ?? 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- ?? 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[string]"/><!-- ?? 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- ?? 0..* Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- ?? 0..* Reference(Observation) 
     Related measurements the observation is made from --></derivedFrom>
 <component> ?? 0..* BackboneElement  <!-- ?? 0..* Component results -->
  <modifierExtension><!-- ?? 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- ?? 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <value[x]><!-- ?? 0..1 Quantity|CodeableConcept|string|
    boolean|integer|Range|Ratio|SampledData|time|dateTime|Period|Attachment 
      Actual component result --></value[x]>
  <dataAbsentReason><!-- ?? 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- ?? 0..* CodeableConcept High, low, normal, etc.   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>

JSON Template

{ // Device Metric Observation Profile
  // from Element: extension
    "meta" : { Meta }, // C?Metadata about the resource
    "implicitRules" : "<uri>", // C?A set of rules under which this content was created
    "language" : "<code>", // C?Language of the resource content
    "text" : { Narrative }, // C?Text summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // C?Extensions that cannot be ignored
    "identifier" : [{ Identifier }], // C?Business Identifier for observation
// value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // C?Instantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // C?Instantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // C?Fulfills plan, proposal or order
    "partOf" : [{ Reference(MedicationAdministration) }], // C?Part of referenced event
    "status" : "<code>", // C? R! registered | preliminary | final | amended +
    "category" : [{ CodeableConcept }], // C?Classification of  type of observation
    "code" : { CodeableConcept }, // C? R! Type of observation (code / type)
    "subject" : { Reference(Patient) }, // C? R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // C?What the observation is about, when it is not about the subject of record
    "effectiveDateTime" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Clinically relevant time/time-period for observation // C? R! 
        // from Element: extension
      }
    ],
    "performer" : [{ Reference(Practitioner) }], // C?Who is responsible for the observation
// value[x]: Actual result. One of these 9:
    "valueQuantity" : { Quantity }, // C?Actual result
    "valueCodeableConcept" : { CodeableConcept }, // C?Actual result
    "valueString" : "<string>", // C?Actual result
    "valueRange" : { Range }, // C?Actual result
    "valueRatio" : { Ratio }, // C?Actual result
    "valueSampledData" : { SampledData }, // C?Actual result
    "valueTime" : "<time>", // C?Actual result
    "valueDateTime" : "<dateTime>", // C?Actual result
    "valuePeriod" : { Period }, // C?Actual result
    "interpretation" : { CodeableConcept }, // C?High, low, normal, etc.
    "note" : [{ Annotation }] // C?Comments about the observation
    "bodySite" : { CodeableConcept }, // C?Observed body part
    "method" : { CodeableConcept }, // C?How it was done
    "device" : { Reference(DeviceMetric) }, // C? R! (Measurement) Device
    "referenceRange" : { BackboneElement }, // C?Provides guide for interpretation
    "hasMember" : [{ Reference(Observation) }], // C?Related resource that belongs to the Observation group
    "derivedFrom" : [{ Reference(Observation) }], // C?Related measurements the observation is made from
    "component" : [{ BackboneElement }], // C?Component results
  }

 

Alternate definitions: Master Definition (XML, JSON), Schematron

PathNameConformanceValueSet
Observation.languageCommon LanguagespreferredCommon Languages
Observation.statusObservationStatusrequiredObservationStatus
Observation.categoryObservation Category CodespreferredObservation Category Codes
Observation.codeLOINC CodesexampleLOINC Codes
Observation.interpretationObservation Interpretation CodesextensibleObservation Interpretation Codes
Observation.bodySiteSNOMED CT Body StructuresexampleSNOMED CT Body Structures
Observation.methodObservation MethodsexampleObservation Methods
Observation.referenceRange.typeObservation Reference Range Meaning CodespreferredObservation Reference Range Meaning Codes
Observation.referenceRange.appliesToObservation Reference Range Applies To CodesexampleObservation Reference Range Applies To Codes
Observation.component.codeLOINC CodesexampleLOINC Codes
Observation.component.dataAbsentReasonDataAbsentReasonextensibleDataAbsentReason
Observation.component.interpretationObservation Interpretation CodesextensibleObservation Interpretation Codes
.